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SubjectRe: [PATCH v4 0/3] MediaTek Security random number generator support
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Dear Matthias, Rob, Mark,
Just gentle ping.
Thanks


On Mon, 2019-06-24 at 15:24 +0800, Neal Liu wrote:
> These patch series introduce a generic rng driver for Trustzone
> based kernel driver which would like to communicate with ATF
> SIP services.
>
> Patch #1 initials SMC fid table for Mediatek SIP interfaces and
> adds HWRNG related SMC call.
>
> Patch #2..3 adds mtk-sec-rng kernel driver for Trustzone based SoCs.
> For MediaTek SoCs on ARMv8 with TrustZone enabled, peripherals like
> entropy sources is not accessible from normal world (linux) and
> rather accessible from secure world (ATF/TEE) only. This driver aims
> to provide a generic interface to ATF rng service.
>
>
> changes since v1:
> - rename mt67xx-rng to mtk-sec-rng since all MediaTek ARMv8 SoCs
> can reuse this driver.
> - refine coding style and unnecessary check.
>
> changes since v2:
> - remove unused comments.
> - remove redundant variable.
>
> changes since v3:
> - add dt-bindings for MediaTek rng with TrustZone enabled
> - revise HWRNG SMC call fid
>
>
> Neal Liu (3):
> soc: mediatek: add SMC fid table for SIP interface
> dt-bindings: rng: add bindings for MediaTek ARMv8 SoCs
> hwrng: add mtk-sec-rng driver
>
> .../devicetree/bindings/rng/mtk-sec-rng.txt | 10 ++
> drivers/char/hw_random/Kconfig | 16 +++
> drivers/char/hw_random/Makefile | 1 +
> drivers/char/hw_random/mtk-sec-rng.c | 97 +++++++++++++++++++
> include/linux/soc/mediatek/mtk_sip_svc.h | 33 +++++++
> 5 files changed, 157 insertions(+)
> create mode 100644 Documentation/devicetree/bindings/rng/mtk-sec-rng.txt
> create mode 100644 drivers/char/hw_random/mtk-sec-rng.c
> create mode 100644 include/linux/soc/mediatek/mtk_sip_svc.h
>


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